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The global energy sector from a subsurface perspective

Worldwide

Subsurface noise, Issue 3, 2025

Henk Kombrink
SHALLOW GEOTHERMAL IS BOOMING IN ICELAND In contrast to drilling deep for geothermal energy, the geological risks for shallow geothermal are minor or even non-existent, as loops are based on…

Some snakes don’t bite

Henk Kombrink
Everybody is talking about machine learning and big data these days, but what does it mean in reality, and how do geoscientists embrace it in their daily lives? To learn…

Thinking like a geologist in the age of AI

Dan Austin, Sekal
We’re all feeling a tension as geosci­entists: Caught be­tween an old way of working and a rapidly changing future dominated by Artificial Intelligence. As the dust starts to settle, anoth­er…

Uplifting land data with DUG Elastic MP-FWI Imaging

DUG
When it comes to processing and imaging land seismic data, DUG Elastic MP-FWI Imaging produces far superior results! Land seismic data, such as the example above, can often exhibit strong…

Crafting a software that is ready for the future

Henk Kombrink
As much as there is a consolidation happening in the large operator landscape and the seismic acquisition space, the same applies to the subsur­face software business. “Let’s face it,” says…

Unlocking fractured basement reservoirs

Molly Turko, Devon Energy
Fractured basement reservoirs, often igneous or metamorphic rocks like granite or gneiss, contrast with conventional sedimentary reservoirs. Without primary porosity, they depend on fracture networks for hydrocarbon storage and flow.…

Coring process step by step

Henk Kombrink
We often talk about core being the only ground-truth data from the subsurface, but how is core cut from a well at kilometres depth? With many geologists being stuck to…